There are some conditions where this brass works out well, break action single shot rifles being the best of the crop.
The break actions on rimmed cartridges such as the 350 Legend engage the extractor into the groove in the case head upon putting the case into the chamber.
They literally slide the extractor down the side of the case and pop that extractor firmly into place in the head groove as you close the action.
Headspace is actually controlled on these guns until firing by the extractor which is already locked into the extractor groove in the case head.
I am looking for someone with one of these guns ........ I've got some questions for you to answer and an opportunity for you may exist to get some free brass.